As the number of Windows 8.1 users grows, more and more users prefer to make better use of their Windows 8.1 tablet like playing their beloved Blu-ray and DVD movies on it. So wonderful thing, isn’t it? Suppose that you have one of the popular Windows 8.1 tablets like ASUS Transformer Book T100, Microsoft Surface Pro 3, Dell Inspiron 11 3000 (2014), Lenovo Miix 2 (8 inch), Dell Venue 11 Pro, HP Spectre 13 X2, Lenovo ThinkPad Yoga, etc. in hand, in this article, I did want to share the tips and tricks with all of you how to copy your Blu-ray and DVD onto these Windows 8.1 tablets for playing. 
As for me, getting blurays (let alone 3d ones) and dvd to work on a computer is prohibitively difficult to get working for the time being. The only option for many of us is to use third party software to rip Blu-ray/DVD to supported video format and then transfer to Windows 8.1 tablet for playback. You may first have HandBrake in mind, however, HandBrake is not working on Windows 8.1 perfectly, and Disney and many other encrypted DVDs such as Iron Man 3 and Monsters University fail to be ripped by HandBrake on Windows 8.1. As an alternative, Pavtube BDMagic is rating in the first place as a perfect program and makes a nice picture.
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Overall, it is easy to use and helps you fast rip and convert (3D)Blu-ray, DVD to a Windows 8.1 tablet playable format MP4 with perfect audio and video sync keeping HD quality. Besides, it can rip BD/DVD to a wide range of formats, like WMV, MOV, MP4, 3GP, FLV and so on. The equivalent mac version is BDMagic for Mac. Download the program and start conversion.
How to Rip Blu-ray, DVD Movies for better playback performance on Windows 8.1 tablets?
Step 1. Click the disc icon to load Blu-ray,DVD movie files directly via the BD drive or DVD-ROM. 
(Note: Don’t forget to select subtitle and audio track for output.) Step 2. Click “Format” drop-down list and choose proper format. As a universal video format, MP4 is absolutely supported by Windows 8.1 tablet. Click the format bar to follow “Common Video > H.264 Video(*.mp4)” or choose “Windows > Windows 8 Tablets H.264 Video(*.mp4)”. To ensure hi-res video playback on Windows 8.1 tablet, 1080P is better than 720P, but it also requires longer conversion time and produces bigger size file. (Read the guides to rip Blu-ray ISO to Surface RT or move DVD to Surface) 
Step 3. If you are not satisfied with default specs, then click “Settings” to enter Profiles Settings windows. You can customize video frame rate, bitrate, size and other settings freely. (It does not work for directly copy) 
Step 4. Click “Convert” button to start ripping Blu-ray,DVD movies to Windows 8.1 tablets. When finished, click “Open” button to get the resulted video. Then connect your portable devices to your computer and transfer ripped Blu-ray, DVD movie for watching and viewing on Windows 8.1 tablets with best video quality. Besides Blu-ray and DVD, you can convert 720p/1080p video to Surface RT & Pro windows tablet for enjoying.
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Handbrake is a nice free dvd ripper, you may download it for a try, it’s totally free without any watermark and limitation
yes, but it can’t deal with protected Blu-ray and DVD.